Needle Kit, 15 µL with Needle Seat and Needle Guid Back Catalog number: CTS-21287 Availability: In the manufacturer's stock Price on request - + Recommended CTS-3102 Sapphire Plunger Price on request CTS-21171 Rotor Seal, H-Assy, 6 Port 2-Position Price on request CTS-11294 1515 Performance Maintenance Kit Price on request